I would be truthful, I wasn't able to watch the whole video. Not because it wasn't good (on the contrary I found it precise and engaging) but because the topic is not relate to my field.
Still, for the first 15 minutes I was able to follow the video (intro to VN architecture, basics of C). Then I skipped to around till I reached the 35minute mark to 45 minute mark. I am not much of a programmer and never had any command over any language but I am so glad that I took the time to understand C and an object oriented language like C++ .